Solution to the baryon-dark-matter coincidence problem in the constrained minimal supersymmetric model with a 126-GeV Higgs boson

Ayuki Kamada, Masahiro Kawasaki, Masaki Yamada

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)

Abstract

We show that the baryon-dark-matter coincidence problem can be solved in the constrained minimal supersymmetric model. Baryons and dark matter are generated simultaneously through the late-time decay of nontopological solitons, Q-balls, which are formed after the Affleck-Dine baryogenesis. A certain relation between the universal scalar mass m0 and the universal gaugino mass M1/2 is required to solve the coincidence problem, marginally depending on the other parameters, and the result can be consistent with the observation of the 126-GeV Higgs boson. We also investigate the detectability in dark-matter direct-search experiments.

Original languageEnglish
Article number081301
JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
Volume91
Issue number8
DOIs
Publication statusPublished - 2015 Apr 6
Externally publishedYes

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Physics and Astronomy (miscellaneous)

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